| 两轮升压式空气动压轴承涡轮冷却器起浮压力计算 |
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| 引用本文： | 赵云峰,胡文超,朱刚,宁家强.两轮升压式空气动压轴承涡轮冷却器起浮压力计算[J].航空动力学报,2012,27(9):2155-2160. |
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| 作者姓名： | 赵云峰 胡文超 朱刚 宁家强 |
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| 作者单位： | 中国航空工业集团公司南京机电液压工程研究中心航空机电系统综合航空科技重点实验室,南京,211106 |
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| 摘 要： | 通过分析两轮升压式空气动压轴承涡轮冷却器的起浮原理，建立了计算起浮压力的方法．按照该方法编制程序计算了某型涡轮冷却器在不同条件下的起浮压力，计算结果与试验实测数据吻合较好，说明计算方法具有较高准确度．通过计算和分析可以看到涡轮出口背压和轴承预紧对轴承起浮影响较大，背压越低则起浮压力越低；轴承预紧力越大则起浮压力越高．
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| 关 键 词： | 空气动压轴承 涡轮冷却器 起浮压力 脱离转速 驱动力矩 摩擦力矩 |
| 收稿时间： | 2011/10/25 0:00:00 |
Calculation of start-up pressure of two-wheel bootstrap air cycle machine with foil air bearing |
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| ZHAO Yun-feng,HU Wen-chao,ZHU Gang and NING Jia-qiang.Calculation of start-up pressure of two-wheel bootstrap air cycle machine with foil air bearing[J].Journal of Aerospace Power,2012,27(9):2155-2160. |
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| Authors: | ZHAO Yun-feng HU Wen-chao ZHU Gang and NING Jia-qiang |
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| Institution: | Aviation Key Laborary of Science and Technology on Aero Electromechanical System Integration, Nanjing Engineering Institute of Aircraft Systems, Aviation Industry Corporation of China, Nanjing 211106, China;Aviation Key Laborary of Science and Technology on Aero Electromechanical System Integration, Nanjing Engineering Institute of Aircraft Systems, Aviation Industry Corporation of China, Nanjing 211106, China;Aviation Key Laborary of Science and Technology on Aero Electromechanical System Integration, Nanjing Engineering Institute of Aircraft Systems, Aviation Industry Corporation of China, Nanjing 211106, China;Aviation Key Laborary of Science and Technology on Aero Electromechanical System Integration, Nanjing Engineering Institute of Aircraft Systems, Aviation Industry Corporation of China, Nanjing 211106, China |
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| Abstract: | Through an analysis of the start-up principle of two-wheel bootstrap air cycle machine (ACM) with foil air bearing,the method to calculate the start-up pressure has been established has been established.According to this method,a program has been composed to calculate the start-up pressure of one ACM under different conditions.The calculation results matched the actual test data well,which demonstrates that this calculation method is of high accuracy.Calculation and analysis show that the turbine outlet pressure and the bearing preload have great effects on the bearing start-up pressure.The lower the turbine outlet pressure,the lower the start-up pressure is.Meanwhile,the greater the preload,the higher the start-up pressure is. |
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| Keywords: | foil air bearing air cycle machine start-up pressure lift off speed driving torque pivoting friction torque |
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